1:30 p.m.On bounding the Betti numbers and computing the Euler characteristic of semi-algebraic sets.Saugata Basu*, Courant Institute of Mathematical Sciences, New York University
(911-12-212)

2:00 p.m.Complexification and degree of a semi-algebraic set.Marie-Francoise Roy*, University of Rennes I, France
(911-11-211)

2:30 p.m.Real factors of analytic polynomials and an application to reparametrization algorithms of real curves.Tomas Recio*, University of Cantabria, Spain
J. R. Sendra, University Alcala de Henares, Spain
(911-14-190)

3:00 p.m.Virtual roots of real polynomials and its applications.Laureano Gonzalez-Vega*, University of Cantabria, Spain
Henri Lombardi, University of Besancon, France
Louis Mahe, University of Rennes I, France
(911-14-193)

4:15 p.m.Computations of self-similar blow-up solutions of the generalized Korteweg-de Vries Equation.Daniel B. Dix*, University of South Carolina, Columbia
William R. McKinney, North Carolina State University
(911-35-199)

4:15 p.m.Boundedness and persistence of solutions of the nonautonomous Lyness and Max equation.Edward A. Grove*, University of Rhode Island
Candace Marie Kent, University of Rhode Island
Gerasimos Ladas, University of Rhode Island
(911-39-265)

10:30 a.m.How to use derivatives to estimate the extremal values of the function on convex sets: Applications of new mean-value theorems.F. H. Clarke, University of Montreal
Yuri Ledyaev*, Steklov Institute of Mathematics, Russia
(911-49-140)

8:30 a.m.Extinction and persistence of species in discrete competitive systems with diffusion.John E. Franke*, North Carolina State University, Raleigh
Abdul-Aziz Yakubu, Howard University
(911-92-138)

2:45 p.m.Some new results in the theory linear elliptic and parabolic equations.Yuliy A. Semenov*, University of Toronto
(911-35-46)

3:15 p.m.The spectrum of the kinematic dynamo operator for an ideally conducting fluid.Carmen C. Chicone, University of Missouri, Columbia
Yuri D. Latushkin*, University of Missouri, Columbia
Stephen John Montgomery-Smith, University of Missouri, Columbia
(911-46-14)

2:30 p.m.Maximality, primality, and minimality in rings with involution.Gary F. Birkenmeier*, University of Southwestern Louisiana
Henry E. Heatherly, University of Southwestern Louisiana
Nico Groenewald, University of Port Elizabeth, Republic of South Africa
(911-16-35)

8:00 a.m.A periodically - forced system with application to population dynamics.Shandelle M. Henson*, University of Arizona
(911-39-167)

8:30 a.m.WKB and turning point theory for $2$nd order difference equations with applications.Jeffrey S. Geronimo*, Georgia Institute of Technology
(911-30-264)

9:00 a.m.Dynamic systems on time scales and superlinear convergence.A. S. Vatsala*, University of Southwestern Louisiana
(911-34-147)

9:30 a.m.On the boundedness of the orbit of the gingerbreadman map.Elias Camouzis*, University of Rhode Island
Richard C. DeVault, University of Rhode Island
Gerasimos Ladas, University of Rhode Island
(911-39-134)

9:00 a.m.About the image of the signature map in the two dimensional case.Jean-Philippe Monnier*, University of Rennes 1, France
(911-14-121)

9:30 a.m.Exponentiation in power series fields.Salma Kuhlmann*, University of Heidelberg, Germany
Franz Viktor Kuhlmann, University of Heidelberg, Germany
Saharon Shelah, Hebrew University of Jerusalem, Israel
(911-12-124)

10:00 a.m.Old and new constructions of Hilbert identities.Bruce A. Reznick*, University of Illinois, Urbana-Champaign
(911-11-114)

10:00 a.m.Generating functions for finite group actions on surfaces.Colin Maclachlan, University of Aberdeen, United Kingdom
Andy Miller*, University of Oklahoma
(911-20-248)

10:30 a.m.Higher order Dehn functions of groups.Juan M. Alonso, Stockholm University, Sweden
William Aubrey Bogley*, Oregon State University
Robert M. Burton, Jr., Oregon State University
Stephen J. Pride, University of Glasgow, United Kingdom
X. Wang, University of Glasgow, United Kingdom
(911-20-163)

9:00 a.m.Orbits, invariants and representations associated with a pair of commuting involutions.Aloysius G. Helminck*, North Carolina State University
Gerald W. Schwarz, Brandeis University
(911-20-130)

10:00 a.m.Affine semigroups rings that are complete intersections.Klaus G. Fischer, George Mason University
Walter D. Morris, George Mason University
Jay A. Shapiro*, George Mason University
(911-13-112)

10:30 a.m.Finitistic projective dimension for some algebras.Birge Zimmermann, University of California, Santa Barbara
Sverre O. Smalo*, University of California, Santa Barbara and The Norwegian University for Science and Technology, Norway
(911-19-160)

10:00 a.m.Computation of Nielsen numbers for maps of closed surfaces.Owen Davey, State University of New York, Binghamton
Evelyn L. Hart*, Colgate University
Kathryn A. Trapp, Dartmouth College
(911-55-141)